Frog shark
| Frog shark | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Subdivision: | Selachimorpha |
| Order: | Squaliformes |
| Family: | Somniosidae |
| Genus: | Somniosus |
| Species: | S. longus
|
| Binomial name | |
| Somniosus longus S. Tanaka (I), 1912
| |
| Synonyms | |
|
Heteroscymnus longus Tanaka, 1912 | |
The frog shark (Somniosus longus) is a very rare species of squaliform shark mainly found in deep water in the Pacific Ocean. It is in the sleeper shark family Somniosidae with the Greenland shark.
Description
The frog shark is known to grow to a maximum length of 110 cm in males and 130 cm in females. Previously classified in the same taxon as the similar Somniosus rostratus, it is differentiated from S. rostratus in having a longer second dorsal fin, a slightly larger eye, more rows of teeth and a greater spiral valve count.[2]
Range
Fewer than a dozen specimens of this deepwater shark have been collected, mostly from the
Threats
The frog shark is occasionally caught by trawl, longline, and crab-pot fisheries. As of 2015, no current conservation efforts are in place.[1] In June 2018 the New Zealand Department of Conservation classified the frog shark as "Data Deficient" with the qualifier "Uncertain whether Secure Overseas" under the New Zealand Threat Classification System.[3]
References
- ^ . Retrieved 19 November 2021.
- S2CID 38054192.
- OCLC 1042901090.
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